Full-scale wind-tunnel investigation of effects of slot spoilers on the aerodynamic characteristics of a light twin-engine airplane

Author: Andrisani, D., II
Published: Sep 1, 1973.
Physical Description: 1 electronic document
Additional Creators: Verstynen, H. A., Jr.

Online Version

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Summary

A wind-tunnel investigation has been conducted to determine the effects of slot spoilers on the longitudinal and lateral aerodynamic characteristics of a full-scale mockup of a light twin-engine airplane. The slots were located along the leading edge of the flaps and were used to modulate the flap-induced lift as a possible means of achieving direct lift control. The data showed that the slots were effective in spoiling up to 61 percent of the flap-induced lift, but that an adverse pitching-moment change (nose up) accompanied opening the slots. Opening the slots was found to decrease slightly the downwash angle at the tail and to increase slightly the longitudinal stability of the model.

Other Subject(s)

AIRCRAFT

Collection

NASA Technical Reports Server (NTRS) Collection.

Note

Document ID: 19730021301.
Accession ID: 73N30033.
L-8865.
NASA-TN-D-7315.

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